After 20 years or so of aerial photography I finally got up at night last winter and wanted to do the same in summer. Winter is easy, summer is hard. Much less light.
Below is a 10-shot winter pano of the Ottawa area looking north and east.

evening aerial photography with the Df by
southfacing, on Flickr
Summer for the next three. Below is Parliament Hill with the lightshow just beginning.

ottawa centretown 5718 by
southfacing, on Flickr
Below is the War Museum with Bluesfest in its front yard. Entrance to subway under construction is well lit. Bluesfest laser show on the 5th kept us grounded!

ottawa bluesfest 5700 by
southfacing, on Flickr
Canadian Museum of Nature and environs a couple of kM south of Parliament Hill.

ottawa centretown 8303 by
southfacing, on Flickr